1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
3 years ago
11

Which of the statements below does not describe antigens? a. The parts of antigen molecules that initiate immune responses are c

alled epitopes or antigenic determinants. b. Antigens can include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides. c. Antigens exhibit immunogenicity and reactivity. d. Antigens only come from microbes.
Biology
2 answers:
Svet_ta [14]3 years ago
8 0

Answer:

D. antigen only come from microbes

Explanation:

Antigens are substances which elicits a response by the antibodies. Antigens Antigens include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides.

They parts of antigen molecules that initiate immune responses are called epitopes or antigenic determinants.

Allushta [10]3 years ago
7 0

Answer:

The correct answer is d. Antigens only come from microbes. This statement does not describe antigens.

Explanation:

Our immune system produces antibodies when it detects harmful elements, called antigens. Antigens are substances (usually proteins), when introduced into an organism, trigger a defensive reaction. Thus, epitopes are the parts of a molecule that will be recognized by an antibody and to which it will bind. The vast majority of immunogens are proteins. These can be pure proteins or either glycoproteins or lipoproteins. Proteins are generally very good immunogens. Pure polysaccharides and lipopolysaccharides are good immunogens. Nucleic acids are generally weak immunogens. However, they can become immunogenic when they are formed by a single chain or when they are coupled to proteins. In general, lipids are not immunogenic but can behave like haptens. Antigens exhibit (or can show) a series of immunological properties including immunogenicity, which is the ability to stimulate an immune response, that is, to produce antibodies or a state of cellular immunity.

You might be interested in
Which type of climate is most beneficial to soil formation?
IgorC [24]

Answer:

Your answer is A, Rain forest.

Explanation:

Soils develop faster in warm, moist climates and slowest in cold or arid ones. Rainfall is one of the most important climate factors in soil formation.

I hope that helped ,let me know if you need help with anything else

5 0
3 years ago
What type of stellar object will the sun end its life end
Lerok [7]
Your wording is a bit confusing, but I get what you're trying to say.

Here's what the life cycle of a star looks like.

Stars begin as giant balls of hydrogen colliding together and releasing a ton of energy. This hydrogen will eventually fuse together to form helium, and once all of the hydrogen has become helium, This helium will, after a very long time and under lots and lots of pressure, form carbon. When this happens, it is considered a red giant, and the star becomes bigger and less bright. The star will become less and less bright and eventually start to shrink as all of that carbon turns to heavier elements like iron, turning into a dwarf star that eventually dies out.
(Dwarf stars are still shining are called white dwarf stars, and dead ones are black)

The cool part, though, is that massive stars (those which have a mass of at least 3 times the Sun's) turn into heavy elements so fast that the core collapses almost instantaneously and explodes violently into a ball of fire known as a supernova.

Sometimes the core of the star gets left behind, and either forms a neutron star or, if it has the mass of a massive star, will collapse in on itself and become a black hole.

7 0
3 years ago
In onions, the edible portion is a bulb that functions in storing plant food. In which tissue does food travel from the leaves t
MaRussiya [10]
I believe the correct answer among the choices given above is option B. It is the tissue called phloem that the food travel from the leaves to the bulb. Phloem is a vascular tissue in plants that process sugars and other products.Hope this answers the question.
8 0
3 years ago
Only answer if you know!!!!!!
maria [59]
The skin will get infected
5 0
3 years ago
For the first time in her life, Margaret has little sexual desire. She is not alarmed as this is common in others around her age
skelet666 [1.2K]

Answer:45-50

Explanation:because she is attaining menopause

8 0
3 years ago
Other questions:
  • Sperm are the only human cells to have
    10·1 answer
  • Deity demands: <br> A. eternal existence <br> B. humanity <br> C. human birth <br> D. temptation
    11·2 answers
  • What is the energy of a photon first used to do in photosynthesis?
    8·1 answer
  • If you have normal vision, your eyes are not covered, and you are in a well-lit area, then opening your eyes is a necessary and
    7·1 answer
  • Which of these labels for fossils in a museum display contains an error?
    13·1 answer
  • If you get it right I will give brainliest. Please Help ASAP
    8·1 answer
  • What is the source of carbon in BGC cycle​
    7·1 answer
  • 7. What weather element (temperature, humidity, precipitation, air pressure, wind, and visibility)
    6·1 answer
  • What is probability, and how is it used with Punnett squares to predict the outcomes of genetic crosses?
    10·1 answer
  • Which body region should be avoided during myofascial release techniques? Lumbar spine Thoracic spine Knee Pelvis
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!